Wax heater



FIG. 1 is a perspective view of a wax heater, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of the feet and vents is for the purpose of illustrating portions of the wax heater that form no part of the claimed design. 

CLAIM The ornamental design for a wax heater, as shown and described. 